For this case we have a complex number of the form:

Where:
- a: It's the real part of z
- b: It's the imaginary part
To graph a complex number, the real part is represented by the x axis, while the imaginary part is represented by the y axis.
In this case we have the following number:

2 is the real part
1 is the imaginary part
The graph associated with this complex number can be seen in the attached image.
Answer:
See attached image